The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 12, 2021

Filed:

Jun. 28, 2018
Applicant:

Textron Innovations Inc., Providence, RI (US);

Inventors:

Robert Earl Worsham, II, Weatherford, TX (US);

Charles Eric Covington, Colleyville, TX (US);

Thomas Wayne Brooks, Grapevine, TX (US);

Assignee:

Textron Innovations Inc., Providence, RI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 19/52 (2010.01); B64C 13/50 (2006.01); G01C 21/16 (2006.01); G01S 19/14 (2010.01);
U.S. Cl.
CPC ...
G01S 19/52 (2013.01); B64C 13/503 (2013.01); G01C 21/16 (2013.01); G01S 19/14 (2013.01);
Abstract

A rotorcraft includes a flight control computer (FCC), a GPS receiver configured to calculate a groundspeed based on a first carrier signal, and an attitude and heading reference system (AHRS) configured to determine an acceleration of the rotorcraft. The AHRS is operable to receive an indication of the groundspeed from the GPS receiver and to calculate a velocity of the rotorcraft based on the indication of the groundspeed and the acceleration. The FCC is operable to receive an indication of the velocity from the AHRS, to generate the flight control device control signal according to the indication of velocity, and to send a flight control device control signal to one or more flight control devices.


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